(3x^2-2x+5)-(x^2+3x-2)•1/2x^2
In standard form?

Simplify the expression. -2/5(10+15m-20n)

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.